Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/13909#discussion_r93792078
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/GenericArrayData.scala
---
@@ -71,6 +71,10 @@ class GenericArrayData(val array: Array[Any]) extends
ArrayData {
override def getArray(ordinal: Int): ArrayData = getAs(ordinal)
override def getMap(ordinal: Int): MapData = getAs(ordinal)
+ override def setNullAt(ordinal: Int): Unit = throw new
UnsupportedOperationException();
--- End diff --
it's pretty easy to implement it: `array(ordinal) = null`, why throw
exception here?
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